Sleep Diva Chronicles
Let's explore this week's
"Recipe for Sleep"
This week we're looking at a well-priced organic mattress AND adjustable base:

Honest Nest
Organic Calm Nest Mattress - MicroCoil, Organic Customize Latex
Organic Wool       Choose Soft or Firm Latex
What is the difference between a biorhythm, a circadian rhythm
and a body clock?
A biorhythm is simply any type of predictable cycle in a living organism. Some of
these are well-known, like the circadian rhythm, which governs our sleep-wake
phases. Circadian rhythms are found in most living things, including animals,
plants, and many tiny microbes. Within this rhythm are physical, mental and
behavioural changes that follow roughly a daily pattern. The term originates from
Latin and literally means approximately (circa) daily (diem). Your circadian
rhythm influences your sleep-wake cycle, daily patterns of alertness, mood and
performance, hormones (such as melatonin and cortisol), and many other processes
including digestion, heart rate, body temperature and lung function.
The circadian rhythm is often referred to as our body clock because it is the body’
s innate timing device. This natural internal clock is affected by environmental
cues, primarily light (but also temperature). Your body clock causes you to feel
more energetic and alert during certain times of the day and more lethargic and run
down at other periods of the day. All humans have circadian rhythms, but there are
slight differences in the length of the cycles, which is one of the reasons some
people are ‘night owls’ and others are ‘morning people’.
Our circadian rhythm is managed by a part of the brain called the Suprachiasmatic
Nucleus (SCN). Light travels to the SCN from the eye signalling that it is time to
be awake. The SCN then triggers other parts of the brain that control hormones,
body temperature and other functions that play a role in making us feel sleepy or

An example of a human body clock

Why are circadian rhythms important?
When a person’s circadian rhythm is disrupted, sleeping and eating patterns can
run amok. Looking after your body clock will help prevent and help treat sleeping
disorders and benefit your overall health. Irregular rhythms have been linked to
several health problems, including obesity, diabetes, high blood pressure and
cardiovascular disease. As well as contributing to mental health issues, such as
depression, bipolar disorder and seasonal affective disorder. Recent research has
connected circadian rhythm disruption to Alzheimer’s disease, Parkinson’s disease,
and Huntington’s disease, and autism spectrum disorder.
Even seemly small changes, like the beginning and end of Daylight Savings can
disrupt our body clock. Statisticians have found there are more traffic accidents
and workplace injuries when we move the clock forward and lose an hour of sleep.
Furthermore, heart patients are at greater risk of myocardial infarction in the week
following the Daylight Savings time shift.

Jet lag and shift work
A change in the environmental light-dark cycles can speed up, slow down, or reset
circadian rhythms. This is why jet lag confuses our bodies. Symptoms of jet lag
should only last a few days and can include headaches, lethargy, irritability and
reduced cognitive function.
Shift workers can experience a similar problem because the daily cues for the
circadian rhythm do not match up with when a person is asleep and awake. This
may lead to issues with sleep or other aspects of the worker’s health.

What can you do to preserve your circadian rhythm?
Keeping your body’s daily cycle balanced and steady may be one of the most
positive things you can do for your overall health, so here are some actionable tips
to keep yours on track.
1.   The best way you can support your natural circadian rhythm is to keep a
routine according to the Sleep Health Foundation. As much as possible, go to bed
at the same time and wake up at the same time every day. Unfortunately, this also
means ditching your Sunday sleep in.
2.   Avoid artificial light after sundown. The light emitted from our computers,
phones, TVs, and even fluorescent light bulbs can interfere with our body clocks
by tricking the body into thinking it is daytime. Try dimming the lights in the
evening and having a technology free period before bed. Professor Lockley from
the Alertness CRC suggests making your sleep space as dark as possible or using
an eye mask.
3.   Get as much natural light as you can during the day, particularly in the
morning. Open the windows, eat lunch outside, go for a short walk, take the
window seat on the train or work outside.
4.   Physical activity is another cue for your body clock that it is time to be awake.
So, get your large joints moving in the morning with some exercises or stretches.
5.   Dr Felino Cagampang from the University of Southampton reported that
digestion and metabolism play a role in maintaining your circadian rhythm. He
says that ideally, we should be eating during daylight and fasting when it is dark
outside. This won’t always be practical but maybe you could consider an earlier
dinner. He also recommends making breakfast the biggest and most nutritional
meal of the day.
6.   Certain foods that send conflicting cues to your body clock are best avoided in
the afternoon and evening. These include caffeinated drinks, alcohol, foods high in
saturated fats, and sugary food or drinks.
7.   Finally, get enough sleep to keep your circadian rhythm in check. For most
adults this is at least 7 hours of sleep.

Recommended sleep chart from the National Sleep Foundation

Tips for resetting your body clock
Sometimes life gets in the way and our body clocks fall out of sync, due to travel,
work, stress, children, social commitments, illness or other factors. Here are a few
ways to reset your body clock when it has gone off course.
• Take the family camping. This is the perfect way to get plenty of light during the
day and minimal artificial light at night. If you take a mobile phone, save it for
• Make gradual changes until you have your groove back. Research suggests
adjusting your current sleep schedule by no more than 30 minutes per day and
remain on that schedule for a few days or even weeks, so your body catches up.
For instance, if you are in the habit of going to sleep at 2am, try 1:30am for a week
and after that bring it forward to 1am.
• If you are recovering from jet lag, try this free app which calculates the best
times to be exposed to light and darkness to get back on track.

Please note:  This article is not to be used as medical advice.  Always speak to a
medical professional before taking supplements to make sure they are right for